Uber and GM’s Maven car-sharing program

Uber Technologies Inc said on Tuesday it would partner with car-sharing service Maven, operated by General Motors, to allow Uber drivers to rent GM vehicles on a weekly basis.

The 90-day pilot is a surprise move for Maven and General Motors, which with Lyft – Uber’s main competitor in North America – announced a program in March called Express Drive used mostly by Lyft drivers. Maven operates in 10 U.S. cities.

As part of its investment in the younger ride-hail company, GM agreed to supply vehicles for Lyft’s Express Drive program — a service similar to Uber and GM’s pilot except there is no end date and Lyft charges a fee for personal use of the vehicle unless drivers give 65 or more rides a week, in which case the rental fee is waived.

Lyft’s program is also available in Boston, Chicago, Washington D.C., Denver, Las Vegas, Los Angeles, San Francisco and San Jose.

Lyft spokeswoman Sheila Bryson said Maven’s partnership was similar to how Lyft worked with Hertz. Lyft drivers can also use Hertz cars through the Express Drive program.